diff options
Diffstat (limited to 'statistics')
| -rw-r--r-- | statistics/leastsq.hpp | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/statistics/leastsq.hpp b/statistics/leastsq.hpp index 3b5ab37..f23f0d1 100644 --- a/statistics/leastsq.hpp +++ b/statistics/leastsq.hpp @@ -8,6 +8,7 @@ #define LEAST_SQ_HPP
#define OPT_HEADER
#include <core/fitter.hpp>
+#include <misc/optvec.hpp>
#include <iostream>
#include <vector>
#include <cmath>
@@ -84,9 +85,72 @@ namespace opt_utilities return result;
}
};
+
+ template<typename T,typename Ts,typename Tstr>
+ class leastsq<optvec<T>,optvec<T>,optvec<T>,Ts,Tstr>
+ :public statistic<optvec<T>,optvec<T>,optvec<T>,Ts,Tstr>
+ {
+ private:
+ bool verb;
+ int n;
+
+ typedef optvec<T> Tx;
+ typedef optvec<T> Ty;
+ typedef optvec<T> Tp;
+ statistic<Ty,Tx,Tp,Ts,Tstr>* do_clone()const
+ {
+ // return const_cast<statistic<Ty,Tx,Tp>*>(this);
+ return new leastsq<Ty,Tx,Tp,Ts,Tstr>(*this);
+ }
+
+ const char* do_get_type_name()const
+ {
+ return "least square statistic";
+ }
+
+ public:
+ void verbose(bool v)
+ {
+ verb=v;
+ }
+ public:
+ leastsq()
+ :verb(false)
+ {}
+
+
+
+ Ts do_eval(const Tp& p)
+ {
+ Ts result(0);
+ for(int i=(this->get_data_set()).size()-1;i>=0;--i)
+ {
+ Ty chi(this->get_data_set().get_data(0).get_y().size());
+ for(int j=0;j<chi.size();++j)
+ {
+ Ty model_y(eval_model(this->get_data_set().get_data(i).get_x(),p));
+ if(model_y[j]>this->get_data_set().get_data(i).get_y()[j])
+ {
+ chi[j]=(this->get_data_set().get_data(i).get_y()[j]-model_y[j]);
+ }
+ else
+ {
+ chi[j]=(this->get_data_set().get_data(i).get_y()[j]-model_y[j]);
+ }
+ }
+ result+=sum(chi*chi);
+
+ }
+ return result;
+ }
+ };
+
+
}
+
+
#endif
//EOF
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